Any woman with his surname who is not yet married should just let herself get married by the next guy who asks her to be his wife , in order to just to change her surname officially. Who wants to go around in the next 5 years being called in Zimbabwe , for example Tsitsi, Chipo, Fadzai Sandra.. etc Mnangagwa. That could cause unnecessary stress , even if the young women are not directly related to him. Although some could be his out of wedlock grand daughters.